Wendell Piez wrote:
> >Otherwise, there's also a more long-winded but more flexible
> way, where
> >you transform the result of the DirectoryGenerator to produce
> >xi:include elements pointing at a pipeline which extracts
> image metrics
> >from a file, and use the xinclude transformer to perform the
> >inclusions, thereby calling that extraction pipeline once
> for each file.
>
> I assume I can do the same with the result of an Image
> Directory generator, which (contrary to the docs) is listing
> all my files, not just images (though height and width are
> included with images).
>
> But I need more details on how to do this. Can anyone direct
> me further or provide me an example? (In the meantime I'll be
> ferreting into the
> documentation.)
You need a pipeline something like this:
<map:match pattern="image-folder">
<map:generate type="imagedirectory" ... />
<map:transform src="convert-svg-file-to-xinclude.xsl">
<map:parameter name="base-url"
value="cocoon:/extract-svg-metrics/"/>
</map:transform>
<map:transform type="xinclude"/>
<map:serialize type="xml"/>
</map:match>
The stylesheet "convert-svg-file-to-xinclude.xsl" would transform
<dir:file> elements into <xi:include> elements:
<xsl:param name="base-url"/>
<xsl:template match="dir:file">
<xi:include href="{concat($base-url,@name)}"/>
</xsl:template>
The next stage in the pipeline (xinclude) will then resolve these links
and call a pipeline for extracting metrics from an individual svg,
something like this:
<map:match pattern="extract-svg-metrics/*.svg">
<map:generate src="{1}.svg"/>
<map:transform src="extract-svg-metrics.xsl"/>
<map:serialize type="xml"/>
</map:match>
NB the use of "cocoon:/" as the protocol just represents a call back to
the same sitemap.
HTH!!
> Given that SVGs are (sort of) images, maybe the Image
> Directory generator ought to report the dimensions of SVGs
> out of the box ... then I wouldn't even need any of the fancy stuff.
Good point! That would be a far cleaner solution. How's your Java
skills? :-)
Con
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